looking around for ds as want to get rid of his plastic boat thing so i dont have to change his clothes EVERY time he wants to play in it and there are quite alot out there and dont know where to start. It wont be used for water as he has a seperate water thing which he loves. There are a few on ebay like berchet ones but there are already £20 odd. How much are these to buy? Which ones are any good at decent price?